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26 // 26 //
>> 27 // $Id: G4OpBoundaryProcess.hh 84717 2014-10-20 07:39:47Z gcosmo $
27 // 28 //
28 // << 29 //
29 ////////////////////////////////////////////// 30 ////////////////////////////////////////////////////////////////////////
30 // Optical Photon Boundary Process Class Defin 31 // Optical Photon Boundary Process Class Definition
31 ////////////////////////////////////////////// 32 ////////////////////////////////////////////////////////////////////////
32 // 33 //
33 // File: G4OpBoundaryProcess.hh 34 // File: G4OpBoundaryProcess.hh
34 // Description: Discrete Process -- reflection 35 // Description: Discrete Process -- reflection/refraction at
35 // optical in 36 // optical interfaces
36 // Version: 1.1 37 // Version: 1.1
37 // Created: 1997-06-18 38 // Created: 1997-06-18
38 // Modified: 2005-07-28 add G4ProcessType t 39 // Modified: 2005-07-28 add G4ProcessType to constructor
39 // 1999-10-29 add method and clas 40 // 1999-10-29 add method and class descriptors
40 // 1999-10-10 - Fill NewMomentum/ << 41 // 1999-10-10 - Fill NewMomentum/NewPolarization in
41 // DoAbsorption. The 42 // DoAbsorption. These members need to be
42 // filled since DoIt << 43 // filled since DoIt calls
43 // aParticleChange.S 44 // aParticleChange.SetMomentumChange etc.
44 // upon return (than 45 // upon return (thanks to: Clark McGrew)
45 // 2006-11-04 - add capability of 46 // 2006-11-04 - add capability of calculating the reflectivity
46 // off a metal surfa 47 // off a metal surface by way of a complex index
47 // of refraction - T 48 // of refraction - Thanks to Sehwook Lee and John
48 // Hauptman (Dept. o 49 // Hauptman (Dept. of Physics - Iowa State Univ.)
49 // 2009-11-10 - add capability of 50 // 2009-11-10 - add capability of simulating surface reflections
50 // with Look-Up-Tabl 51 // with Look-Up-Tables (LUT) containing measured
51 // optical reflectan 52 // optical reflectance for a variety of surface
52 // treatments - Than 53 // treatments - Thanks to Martin Janecek and
53 // William Moses (La 54 // William Moses (Lawrence Berkeley National Lab.)
54 // 2013-06-01 - add the capabilit 55 // 2013-06-01 - add the capability of simulating the transmission
55 // of a dichronic fi 56 // of a dichronic filter
56 // 2017-02-24 - add capability of <<
57 // with Look-Up-Tabl <<
58 // 57 //
59 // Author: Peter Gumplinger 58 // Author: Peter Gumplinger
60 // adopted from work by Werner Ke 59 // adopted from work by Werner Keil - April 2/96
>> 60 // mail: gum@triumf.ca
61 // 61 //
62 ////////////////////////////////////////////// 62 ////////////////////////////////////////////////////////////////////////
63 63
64 #ifndef G4OpBoundaryProcess_h 64 #ifndef G4OpBoundaryProcess_h
65 #define G4OpBoundaryProcess_h 1 65 #define G4OpBoundaryProcess_h 1
66 66
67 #include "G4OpticalPhoton.hh" << 67 /////////////
68 #include "G4OpticalSurface.hh" << 68 // Includes
>> 69 /////////////
>> 70
>> 71 #include "globals.hh"
>> 72 #include "templates.hh"
>> 73 #include "geomdefs.hh"
>> 74 #include "Randomize.hh"
>> 75
69 #include "G4RandomTools.hh" 76 #include "G4RandomTools.hh"
>> 77 #include "G4RandomDirection.hh"
>> 78
>> 79 #include "G4Step.hh"
70 #include "G4VDiscreteProcess.hh" 80 #include "G4VDiscreteProcess.hh"
>> 81 #include "G4DynamicParticle.hh"
>> 82 #include "G4Material.hh"
>> 83 #include "G4LogicalBorderSurface.hh"
>> 84 #include "G4LogicalSkinSurface.hh"
>> 85 #include "G4OpticalSurface.hh"
>> 86 #include "G4OpticalPhoton.hh"
>> 87 #include "G4TransportationManager.hh"
71 88
72 enum G4OpBoundaryProcessStatus << 89 // Class Description:
73 { << 90 // Discrete Process -- reflection/refraction at optical interfaces.
74 Undefined, << 91 // Class inherits publicly from G4VDiscreteProcess.
75 Transmission, << 92 // Class Description - End:
76 FresnelRefraction, << 93
77 FresnelReflection, << 94 /////////////////////
78 TotalInternalReflection, << 95 // Class Definition
79 LambertianReflection, << 96 /////////////////////
80 LobeReflection, << 97
81 SpikeReflection, << 98 enum G4OpBoundaryProcessStatus { Undefined,
82 BackScattering, << 99 Transmission, FresnelRefraction,
83 Absorption, << 100 FresnelReflection, TotalInternalReflection,
84 Detection, << 101 LambertianReflection, LobeReflection,
85 NotAtBoundary, << 102 SpikeReflection, BackScattering,
86 SameMaterial, << 103 Absorption, Detection, NotAtBoundary,
87 StepTooSmall, << 104 SameMaterial, StepTooSmall, NoRINDEX,
88 NoRINDEX, << 105 PolishedLumirrorAirReflection,
89 PolishedLumirrorAirReflection, << 106 PolishedLumirrorGlueReflection,
90 PolishedLumirrorGlueReflection, << 107 PolishedAirReflection,
91 PolishedAirReflection, << 108 PolishedTeflonAirReflection,
92 PolishedTeflonAirReflection, << 109 PolishedTiOAirReflection,
93 PolishedTiOAirReflection, << 110 PolishedTyvekAirReflection,
94 PolishedTyvekAirReflection, << 111 PolishedVM2000AirReflection,
95 PolishedVM2000AirReflection, << 112 PolishedVM2000GlueReflection,
96 PolishedVM2000GlueReflection, << 113 EtchedLumirrorAirReflection,
97 EtchedLumirrorAirReflection, << 114 EtchedLumirrorGlueReflection,
98 EtchedLumirrorGlueReflection, << 115 EtchedAirReflection,
99 EtchedAirReflection, << 116 EtchedTeflonAirReflection,
100 EtchedTeflonAirReflection, << 117 EtchedTiOAirReflection,
101 EtchedTiOAirReflection, << 118 EtchedTyvekAirReflection,
102 EtchedTyvekAirReflection, << 119 EtchedVM2000AirReflection,
103 EtchedVM2000AirReflection, << 120 EtchedVM2000GlueReflection,
104 EtchedVM2000GlueReflection, << 121 GroundLumirrorAirReflection,
105 GroundLumirrorAirReflection, << 122 GroundLumirrorGlueReflection,
106 GroundLumirrorGlueReflection, << 123 GroundAirReflection,
107 GroundAirReflection, << 124 GroundTeflonAirReflection,
108 GroundTeflonAirReflection, << 125 GroundTiOAirReflection,
109 GroundTiOAirReflection, << 126 GroundTyvekAirReflection,
110 GroundTyvekAirReflection, << 127 GroundVM2000AirReflection,
111 GroundVM2000AirReflection, << 128 GroundVM2000GlueReflection,
112 GroundVM2000GlueReflection, << 129 Dichroic };
113 Dichroic, <<
114 CoatedDielectricReflection, <<
115 CoatedDielectricRefraction, <<
116 CoatedDielectricFrustratedTransmission <<
117 }; <<
118 130
119 class G4OpBoundaryProcess : public G4VDiscrete 131 class G4OpBoundaryProcess : public G4VDiscreteProcess
120 { 132 {
121 public: <<
122 explicit G4OpBoundaryProcess(const G4String& <<
123 G4ProcessType t <<
124 virtual ~G4OpBoundaryProcess(); <<
125 133
126 virtual G4bool IsApplicable( << 134 public:
127 const G4ParticleDefinition& aParticleType) <<
128 // Returns true -> 'is applicable' only for <<
129 135
130 virtual G4double GetMeanFreePath(const G4Tra << 136 ////////////////////////////////
131 G4ForceCond << 137 // Constructors and Destructor
132 // Returns infinity; i. e. the process does << 138 ////////////////////////////////
133 // 'Forced' condition for the DoIt to be inv <<
134 // at a boundary will any action be taken. <<
135 139
136 G4VParticleChange* PostStepDoIt(const G4Trac << 140 G4OpBoundaryProcess(const G4String& processName = "OpBoundary",
137 const G4Step << 141 G4ProcessType type = fOptical);
138 // This is the method implementing boundary << 142 ~G4OpBoundaryProcess();
139 143
140 virtual G4OpBoundaryProcessStatus GetStatus( << 144 private:
141 // Returns the current status. <<
142 145
143 virtual void SetInvokeSD(G4bool); << 146 G4OpBoundaryProcess(const G4OpBoundaryProcess &right);
144 // Set flag for call to InvokeSD method. <<
145 147
146 virtual void PreparePhysicsTable(const G4Par << 148 //////////////
>> 149 // Operators
>> 150 //////////////
147 151
148 virtual void Initialise(); << 152 G4OpBoundaryProcess& operator=(const G4OpBoundaryProcess &right);
149 153
150 void SetVerboseLevel(G4int); << 154 public:
151 155
152 private: << 156 ////////////
153 G4OpBoundaryProcess(const G4OpBoundaryProces << 157 // Methods
154 G4OpBoundaryProcess& operator=(const G4OpBou << 158 ////////////
155 159
156 G4bool G4BooleanRand(const G4double prob) co << 160 G4bool IsApplicable(const G4ParticleDefinition& aParticleType);
>> 161 // Returns true -> 'is applicable' only for an optical photon.
157 162
158 G4ThreeVector GetFacetNormal(const G4ThreeVe << 163 G4double GetMeanFreePath(const G4Track& ,
159 const G4ThreeVe << 164 G4double ,
>> 165 G4ForceCondition* condition);
>> 166 // Returns infinity; i. e. the process does not limit the step,
>> 167 // but sets the 'Forced' condition for the DoIt to be invoked at
>> 168 // every step. However, only at a boundary will any action be
>> 169 // taken.
160 170
161 void DielectricMetal(); << 171 G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
162 void DielectricDielectric(); << 172 const G4Step& aStep);
>> 173 // This is the method implementing boundary processes.
163 174
164 void DielectricLUT(); << 175 G4OpBoundaryProcessStatus GetStatus() const;
165 void DielectricLUTDAVIS(); << 176 // Returns the current status.
166 177
167 void DielectricDichroic(); << 178 private:
168 void CoatedDielectricDielectric(); <<
169 179
170 void ChooseReflection(); << 180 G4bool G4BooleanRand(const G4double prob) const;
171 void DoAbsorption(); <<
172 void DoReflection(); <<
173 181
174 G4double GetIncidentAngle(); << 182 G4ThreeVector GetFacetNormal(const G4ThreeVector& Momentum,
175 // Returns the incident angle of optical pho << 183 const G4ThreeVector& Normal) const;
176 184
177 G4double GetReflectivity(G4double E1_perp, G << 185 void DielectricMetal();
178 G4double incidentan << 186 void DielectricDielectric();
179 G4double ImaginaryR << 187 void DielectricLUT();
180 // Returns the Reflectivity on a metallic su << 188 void DielectricDichroic();
181 189
182 G4double GetReflectivityThroughThinLayer(G4d << 190 void ChooseReflection();
183 G4d << 191 void DoAbsorption();
184 G4d << 192 void DoReflection();
185 // Returns the Reflectivity on a coated surf <<
186 193
187 void CalculateReflectivity(); << 194 G4double GetIncidentAngle();
>> 195 // Returns the incident angle of optical photon
188 196
189 void BoundaryProcessVerbose() const; << 197 G4double GetReflectivity(G4double E1_perp,
>> 198 G4double E1_parl,
>> 199 G4double incidentangle,
>> 200 G4double RealRindex,
>> 201 G4double ImaginaryRindex);
>> 202 // Returns the Reflectivity on a metalic surface
190 203
191 // Invoke SD for post step point if the phot << 204 void CalculateReflectivity(void);
192 G4bool InvokeSD(const G4Step* step); <<
193 205
194 G4ThreeVector fOldMomentum; << 206 void BoundaryProcessVerbose(void) const;
195 G4ThreeVector fOldPolarization; <<
196 207
197 G4ThreeVector fNewMomentum; << 208 // Invoke SD for post step point if the photon is 'detected'
198 G4ThreeVector fNewPolarization; << 209 G4bool InvokeSD(const G4Step* step);
199 210
200 G4ThreeVector fGlobalNormal; << 211 private:
201 G4ThreeVector fFacetNormal; <<
202 212
203 const G4Material* fMaterial1; << 213 G4double thePhotonMomentum;
204 const G4Material* fMaterial2; <<
205 214
206 G4OpticalSurface* fOpticalSurface; << 215 G4ThreeVector OldMomentum;
>> 216 G4ThreeVector OldPolarization;
207 217
208 G4MaterialPropertyVector* fRealRIndexMPV; << 218 G4ThreeVector NewMomentum;
209 G4MaterialPropertyVector* fImagRIndexMPV; << 219 G4ThreeVector NewPolarization;
210 G4Physics2DVector* fDichroicVector; <<
211 220
212 G4double fPhotonMomentum; << 221 G4ThreeVector theGlobalNormal;
213 G4double fRindex1; << 222 G4ThreeVector theFacetNormal;
214 G4double fRindex2; <<
215 223
216 G4double fSint1; << 224 G4Material* Material1;
>> 225 G4Material* Material2;
217 226
218 G4double fReflectivity; << 227 G4OpticalSurface* OpticalSurface;
219 G4double fEfficiency; <<
220 G4double fTransmittance; <<
221 G4double fSurfaceRoughness; <<
222 228
223 G4double fProb_sl, fProb_ss, fProb_bs; << 229 G4MaterialPropertyVector* PropertyPointer;
224 G4double fCarTolerance; << 230 G4MaterialPropertyVector* PropertyPointer1;
>> 231 G4MaterialPropertyVector* PropertyPointer2;
225 232
226 // Used by CoatedDielectricDielectric() << 233 G4double Rindex1;
227 G4double fCoatedRindex, fCoatedThickness; << 234 G4double Rindex2;
228 235
229 G4OpBoundaryProcessStatus fStatus; << 236 G4double cost1, cost2, sint1, sint2;
230 G4OpticalSurfaceModel fModel; <<
231 G4OpticalSurfaceFinish fFinish; <<
232 237
233 G4int f_iTE, f_iTM; << 238 G4OpBoundaryProcessStatus theStatus;
234 239
235 G4int fNumSmallStepWarnings = 0; // number o << 240 G4OpticalSurfaceModel theModel;
236 G4int fNumBdryTypeWarnings = 0; // number o <<
237 241
238 size_t idx_dichroicX = 0; << 242 G4OpticalSurfaceFinish theFinish;
239 size_t idx_dichroicY = 0; <<
240 size_t idx_rindex1 = 0; <<
241 size_t idx_rindex_surface = 0; <<
242 size_t idx_reflect = 0; <<
243 size_t idx_eff = 0; <<
244 size_t idx_trans = 0; <<
245 size_t idx_lobe = 0; <<
246 size_t idx_spike = 0; <<
247 size_t idx_back = 0; <<
248 size_t idx_rindex2 = 0; <<
249 size_t idx_groupvel = 0; <<
250 size_t idx_rrindex = 0; <<
251 size_t idx_irindex = 0; <<
252 size_t idx_coatedrindex = 0; <<
253 243
254 // Used by CoatedDielectricDielectric() << 244 G4double theReflectivity;
255 G4bool fCoatedFrustratedTransmission = true; << 245 G4double theEfficiency;
>> 246 G4double theTransmittance;
256 247
257 G4bool fInvokeSD; << 248 G4double theSurfaceRoughness;
>> 249
>> 250 G4double prob_sl, prob_ss, prob_bs;
>> 251
>> 252 G4int iTE, iTM;
>> 253
>> 254 G4double kCarTolerance;
>> 255
>> 256 size_t idx, idy;
>> 257 G4Physics2DVector* DichroicVector;
258 }; 258 };
259 259
260 //////////////////// 260 ////////////////////
261 // Inline methods 261 // Inline methods
262 //////////////////// 262 ////////////////////
263 263
264 inline G4bool G4OpBoundaryProcess::G4BooleanRa << 264 inline
>> 265 G4bool G4OpBoundaryProcess::G4BooleanRand(const G4double prob) const
265 { 266 {
266 // Returns a random boolean variable with th << 267 /* Returns a random boolean variable with the specified probability */
>> 268
267 return (G4UniformRand() < prob); 269 return (G4UniformRand() < prob);
268 } 270 }
269 271
270 inline G4bool G4OpBoundaryProcess::IsApplicabl << 272 inline
271 const G4ParticleDefinition& aParticleType) << 273 G4bool G4OpBoundaryProcess::IsApplicable(const G4ParticleDefinition&
>> 274 aParticleType)
272 { 275 {
273 return (&aParticleType == G4OpticalPhoton::O << 276 return ( &aParticleType == G4OpticalPhoton::OpticalPhoton() );
274 } 277 }
275 278
276 inline G4OpBoundaryProcessStatus G4OpBoundaryP << 279 inline
>> 280 G4OpBoundaryProcessStatus G4OpBoundaryProcess::GetStatus() const
277 { 281 {
278 return fStatus; << 282 return theStatus;
279 } 283 }
280 284
281 inline void G4OpBoundaryProcess::ChooseReflect << 285 inline
>> 286 void G4OpBoundaryProcess::ChooseReflection()
282 { 287 {
283 G4double rand = G4UniformRand(); << 288 G4double rand = G4UniformRand();
284 if(rand < fProb_ss) << 289 if ( rand >= 0.0 && rand < prob_ss ) {
285 { << 290 theStatus = SpikeReflection;
286 fStatus = SpikeReflection; << 291 theFacetNormal = theGlobalNormal;
287 fFacetNormal = fGlobalNormal; << 292 }
288 } << 293 else if ( rand >= prob_ss &&
289 else if(rand < fProb_ss + fProb_sl) << 294 rand <= prob_ss+prob_sl) {
290 { << 295 theStatus = LobeReflection;
291 fStatus = LobeReflection; << 296 }
292 } << 297 else if ( rand > prob_ss+prob_sl &&
293 else if(rand < fProb_ss + fProb_sl + fProb_b << 298 rand < prob_ss+prob_sl+prob_bs ) {
294 { << 299 theStatus = BackScattering;
295 fStatus = BackScattering; << 300 }
296 } << 301 else {
297 else << 302 theStatus = LambertianReflection;
298 { << 303 }
299 fStatus = LambertianReflection; <<
300 } <<
301 } 304 }
302 305
303 inline void G4OpBoundaryProcess::DoAbsorption( << 306 inline
>> 307 void G4OpBoundaryProcess::DoAbsorption()
304 { 308 {
305 fStatus = Absorption; << 309 theStatus = Absorption;
306 310
307 if(G4BooleanRand(fEfficiency)) << 311 if ( G4BooleanRand(theEfficiency) ) {
308 { << 312
309 // EnergyDeposited =/= 0 means: photon has << 313 // EnergyDeposited =/= 0 means: photon has been detected
310 fStatus = Detection; << 314 theStatus = Detection;
311 aParticleChange.ProposeLocalEnergyDeposit( << 315 aParticleChange.ProposeLocalEnergyDeposit(thePhotonMomentum);
312 } << 316 }
313 else << 317 else {
314 { << 318 aParticleChange.ProposeLocalEnergyDeposit(0.0);
315 aParticleChange.ProposeLocalEnergyDeposit( << 319 }
316 } <<
317 320
318 fNewMomentum = fOldMomentum; << 321 NewMomentum = OldMomentum;
319 fNewPolarization = fOldPolarization; << 322 NewPolarization = OldPolarization;
320 323
321 aParticleChange.ProposeTrackStatus(fStopAndK << 324 // aParticleChange.ProposeEnergy(0.0);
>> 325 aParticleChange.ProposeTrackStatus(fStopAndKill);
322 } 326 }
323 327
324 inline void G4OpBoundaryProcess::DoReflection( << 328 inline
>> 329 void G4OpBoundaryProcess::DoReflection()
325 { 330 {
326 if(fStatus == LambertianReflection) << 331 if ( theStatus == LambertianReflection ) {
327 { << 332
328 fNewMomentum = G4LambertianRand(fGlobalNor << 333 NewMomentum = G4LambertianRand(theGlobalNormal);
329 fFacetNormal = (fNewMomentum - fOldMomentu << 334 theFacetNormal = (NewMomentum - OldMomentum).unit();
330 } << 335
331 else if(fFinish == ground) << 336 }
332 { << 337 else if ( theFinish == ground ) {
333 fStatus = LobeReflection; << 338
334 if(!fRealRIndexMPV || !fImagRIndexMPV) << 339 theStatus = LobeReflection;
335 { << 340 if ( PropertyPointer1 && PropertyPointer2 ){
336 fFacetNormal = GetFacetNormal(fOldMoment << 341 } else {
337 } << 342 theFacetNormal =
338 // else << 343 GetFacetNormal(OldMomentum,theGlobalNormal);
339 // complex ref. index to be implemented << 344 }
340 fNewMomentum = << 345 G4double PdotN = OldMomentum * theFacetNormal;
341 fOldMomentum - (2. * fOldMomentum * fFac << 346 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
342 } << 347
343 else << 348 }
344 { << 349 else {
345 fStatus = SpikeReflection; << 350
346 fFacetNormal = fGlobalNormal; << 351 theStatus = SpikeReflection;
347 fNewMomentum = << 352 theFacetNormal = theGlobalNormal;
348 fOldMomentum - (2. * fOldMomentum * fFac << 353 G4double PdotN = OldMomentum * theFacetNormal;
349 } << 354 NewMomentum = OldMomentum - (2.*PdotN)*theFacetNormal;
350 fNewPolarization = << 355
351 -fOldPolarization + (2. * fOldPolarization << 356 }
>> 357 G4double EdotN = OldPolarization * theFacetNormal;
>> 358 NewPolarization = -OldPolarization + (2.*EdotN)*theFacetNormal;
352 } 359 }
353 360
354 #endif /* G4OpBoundaryProcess_h */ 361 #endif /* G4OpBoundaryProcess_h */
355 362